Undertone (1972) Timeline Explained – Every Event in Order

Abyzou is a mythical demon known as the patron saint of cursed mothers who preys on women with children, causing miscarriages or driving mothers to harm their infants. The demon is specifically targeting Evy because she is pregnant - the tapes act as a conduit that summons or awakens Abyzou, drawing the demonic presence into her home. The reveal comes when Evy and Justin reverse the mysterious recordings and discover Abyzou's name embedded in the audio.

Foreshadowing: Earlier audio clips contain backward whispers and nursery rhymes that foreshadow the demonic entity's presence.

• abyzou
• demon
• cursed mothers
• pregnancy
• supernatural
• horror podcast

Yes, the tapes function as a summoning mechanism. When callers warn that listening to the ten tapes awakens Abyzou, this proves true as Evy's home becomes increasingly haunted with flickering lights, strange noises, and the Virgin Mary statue mysteriously appearing. The reversed audio contains Abyzou's name and likely serves as an invocation. The more Evy listens and investigates, the stronger the demonic presence becomes.

Foreshadowing: The third audio file's sounds of running water echo in Evy's own house, showing the tapes are affecting reality.

• audio tapes
• summoning
• recordings
• haunting
• reverse audio

At the climax, after the final audio files trigger viewer calls about danger and a crying baby, Evy screams and the film cuts to black. Her voice then distorts, repeatedly saying "Come in Abyzou" backward, revealing that the demon has fully taken control. The ending confirms that Evy has been possessed or consumed by Abyzou - the backward phrase is the final indication that she has become a vessel for the demon, mirroring how the reversed audio throughout the film carried hidden messages.

Foreshadowing: Throughout the film, backward whispers and phrases hidden in the audio foreshadow this final invocation.

• come in abyzou
• ending
• possession
• backward audio
• final scene

Jessa and Mike are the couple featured in the ten anonymous audio files. As the tapes progress, they experience increasingly disturbing phenomena - sleepwalking, mysterious sounds in their house, a creepy doll, and finally Jessa's desperate screams about something by the kitchen sink. The ninth file reveals Jessa warning that Abyzou may be coming for them, and subsequent caller stories suggest tragedies befell neighboring families who listened to the tapes. Their ultimate fate remains ambiguous but clearly dire - the recordings document their descent into terror as the demon targets them.

Foreshadowing: The early clips show subtle wrongness - Jessa singing in her sleep, the backwards "Mike kill all" - that escalates into full haunting.

• jessa
• mike
• audio files
• couple
• fate
• recordings

Evy discovers she's six weeks pregnant early in the film, forcing her to decide whether to keep the baby. This pregnancy makes her a perfect target for Abyzou - the demon specifically preys on mothers and pregnant women, causing miscarriages or infanticide. The timing of the haunting coinciding with her pregnancy is not coincidental; the tapes have drawn the demon to her specifically because she represents the maternal aspect it corrupts. Her dual role as caregiver to her dying mother and potential mother to an unborn child intensifies the demon's focus on her.

Foreshadowing: The nurse's warning about the death rattle connects maternal death themes to the supernatural threat.

• pregnancy
• evy
• mother
• maternal
• abyzou target
• baby

The audio files prominently feature two nursery rhymes: London Bridge and Baa Baa Black Sheep. London Bridge appears when Jessa sleep-sings it, and in reverse, reveals "Mike kill all." The film connects this to Eleanor of Provence and folklore about orphans buried beneath London Bridge. Baa Baa Black Sheep becomes increasingly disturbing as the tapes progress, with backward play revealing whispered phrases about blood and escalating baby noises. These childhood lullabies become vessels for dark incantations, and their reverse playback reveals the demonic messages Abyzou sends through the recordings.

Foreshadowing: Justin researches these rhymes early, establishing them as vehicles for hidden, sinister meaning.

• london bridge
• baa baa black sheep
• nursery rhyme
• reverse audio
• symbolism
• folklore

I Feel Wonderful is a viral video mentioned at the start of the podcast - an image of a smiling woman that appears to distort and, as stories claim, drives dozens to tragedy. This video serves as the initial hook for the podcast and establishes the supernatural threat level. Later in the film, the video morphs into a terrifying image, showing the cursed content is real and connected to the larger demonic phenomenon. It represents a broader pattern of cursed media that lures people into contact with Abyzou.

Foreshadowing: The video is introduced early as a known viral horror, establishing the film'sfound-footage mythology.

• i feel wonderful
• viral video
• cursed video
• distortion
• horror video

The nurse tells Evy that her mother's breath carries a death rattle, indicating Evelyn is dying. This serves as both a literal health warning and thematic foreshadowing - the mother's impending death parallels the supernatural threats. However, the film's ending suggests something more sinister: as Evy investigates the tapes, Evelyn appears to move on her own, the bathroom light turns on by itself, and Evelyn rises in an eerie manner. This raises the disturbing possibility that Abyzou may be using Evelyn's dying body or that death itself is the demon's doorway.

Foreshadowing: The death rattle warning establishes maternal mortality as a central theme throughout the film.

• death rattle
• evelyn
• mother
• dying
• health
• prognosis

The Virgin Mary statue repeatedly appears despite Evy's attempts to hide or remove it, signaling a malevolent supernatural presence in her home. This can be interpreted as a corrupted religious symbol - rather than offering protection, it becomes an omen of the demonic invasion. Its mysterious appearance represents the blurring line between sacred and profane, and may indicate Abyzou's ability to manipulate objects within the home to create unease.

Foreshadowing: Earlier attempts to banish or hide the statue fail, showing something beyond natural explanation controls its movement.

• virgin mary statue
• appearing
• haunting
• religious symbol
• supernatural

The anonymous sender of the ten audio files is never definitively identified. Evy and Justin attempt to contact the sender but their emails bounce back, maintaining the mystery. The tapes appear to be a conduit for Abyzou - they may have been sent by a previous victim, the demon itself, or someone hoping to spread the curse. The mystery deepens when callers report similar experiences, suggesting a network of affected people. The sender's identity remains one of the film's unresolved mysteries, though the content clearly targets pregnant women and mothers.

Foreshadowing: Early in the investigation, the sender's anonymity is established as emails bounce back.

• anonymous sender
• audio files
• mystery
• tapes
• sender identity
• emails

Evelyn is Evy's dying mother whom she cares for throughout the film. Her declining health creates the primary setting - Evy records the podcast from home while caring for her mother. The nurse's death rattle warning establishes Evelyn's imminent death. In the climax, Evelyn appears to awaken on her own as the bathroom light turns on by itself, suggesting Abyzou may be using her dying body or that death provides the demon access. Evelyn represents the film's maternal theme - both the mother being lost and the potential new life Evy carries, making her the emotional center of the demon's targeting.

Foreshadowing: The death rattle warning and Evelyn's fragile condition foreshadow her role in the climax.

• evelyn
• mother
• caring
• death
• demon connection
• caregiving